User manual SMC 6248M INT

[. . . ] TigerStack 10/100 48-Port 10/100Mbps Stackable Managed Switch 48 auto-MDI/MDI-X 10BASE-T/100BASE-TX ports 2 Gigabit RJ-45 ports shared with 2 SFP transceiver slots 2 Gigabit stacking ports that act as Ethernet ports in standalone mode Stacks up to 4 units 17. 6 Gbps of aggregate bandwidth Non-blocking switching architecture Spanning Tree Protocol and Rapid STP Up to four LACP or static 8-port trunks RADIUS and TACACS+ authentication Rate limiting for bandwidth management CoS support for four-level priority Full support for VLANs with GVRP IP Multicasting with IGMP Snooping Manageable via console, Web, SNMP/RMON Installation Guide SMC6248M TigerStack 10/100 Installation Guide From SMC's Tiger line of feature-rich workgroup LAN solutions 38 Tesla Irvine, CA 92618 Phone: (949) 679-8000 February 2005 Pub. # 150000017100H Information furnished by SMC Networks, Inc. (SMC) is believed to be accurate and reliable. However, no responsibility is assumed by SMC for its use, nor for any infringements of patents or other rights of third parties which may result from its use. [. . . ] Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem. Otherwise back pressure jamming signals may degrade overall performance for the segment attached to the hub. As a general rule the length of fiber optic cable for a single switched link should not exceed: · · · 1000BASE-SX: 550 m (1805 ft) for multimode fiber. 1000BASE-LX: 5 km (3. 1 miles) for single-mode fiber. 1000BASE-ZX: 100 km (62. 14 miles) for single-mode fiber. However, power budget constraints must also be considered when calculating the maximum cable length for your specific environment. 2-6 CHAPTER 3 INSTALLING THE SWITCH Selecting a Site TigerStack units can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to follow the guidelines below when choosing a location. · The site should: - be at the center of all the devices you want to link and near a power outlet. - be able to maintain its temperature within 0 to 50 °C (32 to 122 °F) and its humidity within 5% to 95%, non-condensing - provide adequate space (approximately five centimeters or two inches) on all sides for proper air flow - be accessible for installing, cabling and maintaining the devices - allow the status LEDs to be clearly visible · Make sure twisted-pair cable is always routed away from power lines, fluorescent lighting fixtures and other sources of electrical interference, such as radios and transmitters. · Make sure that the unit is connected to a separate grounded power outlet that provides 100 to 240 VAC, 50 to 60 Hz, is within 2 m (6. 6 feet) of each device and is powered from an independent circuit breaker. As with any equipment, using a filter or surge suppressor is recommended. 3-1 INSTALLING THE SWITCH Ethernet Cabling To ensure proper operation when installing the switch into a network, make sure that the current cables are suitable for 10BASE-T, 100BASE-TX or 1000BASE-T operation. Check the following criteria against the current installation of your network: · Cable type: Unshielded twisted pair (UTP) or shielded twisted pair (STP) cables with RJ-45 connectors; Category 3 or better for 10BASE-T, Category 5 or better for 100BASE-TX, and Category 5, 5e or 6 for 1000BASE-T. · Protection from radio frequency interference emissions · Electrical surge suppression · Separation of electrical wires (switch related or other) and electromagnetic fields from data based network wiring · Safe connections with no damaged cables, connectors or shields RJ-45 Connector Figure 3-1 RJ-45 Connections 3-2 EQUIPMENT CHECKLIST Equipment Checklist After unpacking the TigerStack, check the contents to be sure you have received all the components. Then, before beginning the installation, be sure you have all other necessary installation equipment. Package Contents · TigerStack 10/100, SMC6248M · Four adhesive foot pads · Bracket Mounting Kit containing two brackets and eight screws for attaching the brackets to the switch · Power Cord--either US, Continental Europe or UK · RS-232 console cable · This Installation Guide · Management Guide · SMC Warranty Registration Card--be sure to complete and return to SMC Optional Rack-Mounting Equipment If you plan to rack-mount the switch, be sure to have the following equipment available: · Four mounting screws for each device you plan to install in a rack--these are not included · A screwdriver (Phillips or flathead, depending on the type of screws used) 3-3 INSTALLING THE SWITCH Mounting This switch can be mounted in a standard 19-inch equipment rack or on a desktop or shelf. Mounting instructions for each type of site follow. Rack Mounting Before rack mounting the switch, pay particular attention to the following factors: · Temperature: Since the temperature within a rack assembly may be higher than the ambient room temperature, check that the rack-environment temperature is within the specified operating temperature range. (See page C-2. ) · Mechanical Loading: Do not place any equipment on top of a rack-mounted unit. · Circuit Overloading: Be sure that the supply circuit to the rack assembly is not overloaded. · Grounding: Rack-mounted equipment should be properly grounded. Particular attention should be given to supply connections other than direct connections to the mains. 3-4 MOUNTING To rack-mount devices: 1. Attach the brackets to the device using the screws provided in the Bracket Mounting Kit. 47 48 Sl av e St ac k M as te r Up lin k 51 /D ow n 52 /U p 49 49 PW R Di ag RP U M as k te r 50 51 50 52 St ac Figure 3-2 Attaching the Brackets 2. Mount the device in the rack, using four rack-mounting screws (not provided). 47 48 Sl av e St ac k M as te r Up lin k 51 /D ow n 52 /U p 49 49 PW R Di ag RP U M as k te r 50 51 50 52 St ac Figure 3-3 Installing the Switch in a Rack 3-5 INSTALLING THE SWITCH 3. If installing a single switch only, turn to "Connecting Switches in a Stack" at the end of this chapter. If installing multiple switches, mount them in the rack, one below the other, in any order. [. . . ] The successor IEEE 802. 3 standard provides for integration into the OSI model and extends the physical layer and media with repeaters and implementations that operate on fiber, thin coax and twisted-pair cable. Fast Ethernet A 100 Mbps network communication system based on Ethernet and the CSMA/CD access method. Glossary-2 Full Duplex Transmission method that allows two network devices to transmit and receive concurrently, effectively doubling the bandwidth of that link. Gigabit Ethernet A 1000 Mbps network communication system based on Ethernet and the CSMA/CD access method. IEEE Institute of Electrical and Electronic Engineers. [. . . ]